Bach 24AW vs Denis Wick 2L
The Denis Wick 2L has a wider cup diameter, the Bach 24AW has a larger throat opening.
Cup Diameter
The Denis Wick 2L has a cup diameter of 32.00 mm / 1.2598 in compared to 31.25 mm / 1.2303 in on the Bach 24AW — a difference of 0.75 mm / 0.0295 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bach 24AW has a wider throat (9.00 mm / 0.3543 in vs 8.45 mm / 0.3327 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.